Doesn’t the OnePlus 7 support VoLte?
It's available VoLTE and VoWifi.
It works. Plz consult your network operator. There might be some issue related to setting.
Settings> Wi Fi & Internet > SIM & Network > Preferred network type > 2G/3G/4G ( Auto)
My phone has no option of VOLte! It has no switch to activate it.
Who's your carrier?
"Grameenphone" from Bangladesh.
Just as I suspected.
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by Crystal Z., 2020-11-10